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- Title
Facile fabrication of bimetallic Fe<sub>2</sub>P–Ni<sub>2</sub>P heterostructure for boosted oxygen evolution.
- Authors
Liang, Bing; Hu, Xiaohui; Sun, Dong; Yang, Qun; Tang, Huaibao; Zuo, Xueqin; Lin, Yunxiang; Li, Guang
- Abstract
Developing high-efficient yet low-cost electrocatalysts is crucial for the electrochemical oxygen evolution reaction (OER). Here a universal strategy for the facile synthesis of bimetallic Fe2P–Ni2P heterostructure has been developed. And the catalytic activity of the obtained bimetallic heterostructure had further studied. The sample was obtained by hydrothermal method through mixing the nickel–iron precursors followed by direct phosphating annealing. The catalyst has flower ball morphology that provides a massive active surface area with more active sites. At the same time, the Fe2P–Ni2P bimetallic heterostructure sample has excellent OER catalytic performance under alkaline electrolyte with an overpotential of 317 mV to achieve the current density of 10 mA cm−2 in 1.0 M KOH solution and a low Tafel slope of 58.71 mV dec−1. This research proposes a general and economical method for the preparation of heterogeneous metal phosphide electrocatalysts toward the OER.
- Subjects
HYDROGEN evolution reactions; OXYGEN evolution reactions; FLORAL morphology; CATALYTIC activity; OVERPOTENTIAL; PHOSPHATE coating
- Publication
Journal of Materials Science: Materials in Electronics, 2021, Vol 32, Issue 18, p23420
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-021-06830-5